java casting confusion

Posted by Stardust on Stack Overflow See other posts from Stack Overflow or by Stardust
Published on 2010-03-12T19:20:58Z Indexed on 2010/03/12 19:27 UTC
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java

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casting

Could anyone please tell me why the following casting is resulting in compile time error:

Long l = (Long)Math.pow(5,2);

But why not the following:

long l = (long)Math.pow(5,2);

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